OS Command Injection in AVideo - CVE-2026-33478
Published: May 4, 2026
Vulnerability identifier: #VU129510
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-33478
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to improper neutralization of special elements used in an os command in plugin/CloneSite/cloneClient.json.php when processing the videosDir value from a clone server response during clone operations. A remote attacker can supply a specially crafted videosDir value to execute arbitrary code.
Exploitation is possible as part of a chain in which clone secret keys are disclosed without authentication and used to obtain a database dump containing trivially crackable MD5 password hashes for administrative accounts.
Affected software
AVideo
How to mitigate CVE-2026-33478
Install security update from vendor's website.
AVideo - update to 29.0